Table 1.

Bactericidal activities of levofloxacin, ciprofloxacin, gentamicin, and ceftazidime against P. aeruginosain biofilms

Treatment (n = 3)Bacterial count (log10 CFU/ml) ata:
3 h6 h24 h
None (control)5.43 ± 0.085.24 ± 0.225.17 ± 0.41
Levofloxacin5.58 ± 0.174.87 ± 0.282.69 ± 0.73**
Ciprofloxacin5.16 ± 0.125.01 ± 0.204.72 ± 0.28
Gentamicin5.30 ± 0.245.10 ± 0.194.70 ± 0.15
Ceftazidime5.42 ± 0.165.35 ± 0.174.99 ± 0.18
  • a At 0 h, the bacterial count was 5.75 ± 0.10 log10 CFU/ml. Values are means ± standard deviations. **, significantly different from the corresponding value for the control.